文章信息/Info

Title:

Investigation on Fabrication and Properties of Hollow Spheres/Aluminum Matrix Composite Foams

文章編號(hào):

1674-3962(2020)03-0248-05

作者:

范琦琪; 姜風(fēng)春; 果春煥; 王春鶴; 于天淼;  常云鵬; 王振強(qiáng); 王建東; 牛中毅

（哈爾濱工程大學(xué)材料科學(xué)與化學(xué)工程學(xué)院，黑龍江 哈爾濱 150001）

Author(s):

FAN Qiqi;  JIANG Fengchun;  GUO Chunhuan;  WANG Chunhe;  YU Tianmiao;  CHANG Yunpeng;  WANG Zhenqiang;  WANG Jiandong;  NIU Zhongyi

（College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China）

關(guān)鍵詞:

金屬空心球; 復(fù)合泡沫材料; 粉末冶金; 吸能特性; 隔聲性能

Keywords:

metal hollow spheres;  composite foams;  powder metallurgy;  energy absorption ability;  insulation property

分類(lèi)號(hào):

TF125.6

DOI:

10.7502/j.issn.1674-3962.201901028

文獻(xiàn)標(biāo)志碼:

A

摘要:

采用粉末冶金技術(shù)制備了不同孔隙率的空心球/鋁基復(fù)合泡沫材料，對(duì)其進(jìn)行T7熱處理，并開(kāi)展了不同孔隙率材料壓縮性能及隔聲性能的測(cè)試。結(jié)果表明，制備的泡沫材料中空心球均勻分布于基體內(nèi)，且空心球與基體之間形成明顯的過(guò)渡層；空心球/鋁合金基復(fù)合泡沫材料的壓縮應(yīng)力�矐�(yīng)變曲線(xiàn)呈現(xiàn)線(xiàn)彈性、應(yīng)力平臺(tái)、致密化3個(gè)階段。隨著孔隙率的增加，空心球/鋁合金基復(fù)合泡沫材料的壓縮峰值應(yīng)力、平臺(tái)應(yīng)力及能量吸收能力均呈先上升后下降的變化趨勢(shì)；隨著孔隙率的增加，復(fù)合泡沫材料隔聲性能逐漸下降。

Abstract:

Hollow spheres/aluminum matrix composite foams with different porosity were prepared by powder metallurgy technology and T7 heat treatment, and the compressive properties and sound insulation properties of different porosity materials were tested. The results show that hollow spheres in matrix are distributed evenly, and transition layer between hollow spheres and matrix could be observed obviously. The compressive stress�瞫tain curves of composite foams are mainly divided into three stages: linear elastic stage, stress plateau stage and densification stage. With the increasing of porosity, the compressive peak strength, platform stress and energy absorption capacity of the hollow spheres/aluminum alloy composite foams increase first and then decrease. And with the increasing of porosity, the sound insulation property of the materials decreases gradually.